US office of Japan-based Peptide Institute, a leading manufacturer of high-purity research peptides and protease inhibitors. Catalog includes 2,000+ peptides used globally in academic and pharmaceutical research.

North Carolina-based manufacturer of microwave-assisted peptide synthesis instruments and reagents. Liberty Blue peptide synthesizer is used in leading research institutions globally. Provides SPPS reagents and training.

Fremont, CA-based peptide supplier offering a catalog of 20,000+ pre-made and custom peptides for academic and pharmaceutical research. Provides fluorescent dye conjugates, peptide libraries, and HPLC-purified research peptides.

Division of MilliporeSigma (Merck KGaA) providing over 35,000 catalog peptides and custom synthesis services for pharmaceutical and research applications. Global standard for biochemical reagents and peptide building blocks.

California-based custom peptide synthesis service providing academic and pharmaceutical researchers with high-purity catalog and custom peptides. Specializes in difficult sequences, cyclic peptides, and stapled peptides.